物竞天择确保只有最适应环境的物种才得以生存下来，把基因传递给下一代。
Natural selection ensures only the fittest survive to pass their genes on to the next generation.
很多这些供应商本身就在过去的18个月中减少了成本，却还没有来得及把这些省下来的钱传递给其他消费群体。
Many of these suppliers have themselves reduced their costs in the past 18 months and have yet to pass those savings on.
只可惜，那些应该接收到讯息的卫生官员，都没有把讯息记录下来，要不然就是手机通讯网络中断，无法传递简讯。
Unfortunately, whichever health official was supposed to receive the messages did not record them, or perhaps the mobile phone networks failed to deliver them.
只可惜，那些应该接收到讯息的卫生官员，都没有把讯息记录下来，要不然就是手机通讯网络中断，无法传递简讯。
Unfortunately, whichever health official was supposed to receive the messages did not record them, or perhaps the mobile phone networks failed to deliver them.
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